Necklace



FIG. 1 is a front view of a necklace showing my new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a side view thereof; and,

FIG. 5 is a top view thereof.

The broken lines shown in the drawings represent unclaimed portions of the design and form no part thereof. 

The ornamental design for a necklace, as shown and described. 